Some viral infectious diseases, such as the flu and other respiratory viruses, are seasonal, meaning they spread more easily during the cooler months. This has led scientists to believe that outbreaks of Covid-19, the disease caused by the SARS-CoV-2 virus, might wane as temperatures rise.
In a new study, researchers concluded this might be the case. In their paper, published in Scientific Reports, they indicated Covid-19 cases were less prevalent in countries closer to the equator, where heat and humidity tend to be higher, compared to countries farther away from the equator, where temperatures are lower.
"According to our results, countries are expected to see a decline in new Covid-19 cases during summer and a resurgence during winter," they wrote.